https://doi.org/10.1051/epjconf/202226001007
Supernova Nucleosynthesis, Radioactive Nuclear Reactions and Neutrino-Mass Hierarchy
1 School of Physics & International Research Center for Big-Bang Cosmology and Element Genesis, Beihang University, Beijing 100083, China
2 National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588, Japan
3 Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
4 Department of Physics and Astronomy, “Ettore Majorana” University of Catania, Catania, Italy
5 Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
* e-mail: sternyao@buaa.edu.cn
** e-mail: kusakabe@buaa.edu.cn
*** e-mail: kajino@buaa.edu.cn
**** e-mail: cherubini@lns.infn.it
† e-mail: hayakawa@cns.s.u-tokyo.ac.jp
‡ e-mail: yamag@cns.s.u-tokyo.ac.jp
Published online: 24 February 2022
The ν-process nucleosynthesis in core-collapse supernovae is a sensitive probe of unknown neutrino mass hierarchy through the MSW effect. We carefully studied the uncertainties of almost one hundred ν-induced and nuclear reactions associated with the nucleosynthesis and found that the ν-16O and 11C(α,p)14N reactions among them have the biggest effect on the final 7Li/11B isotopic abundance ratio. The neutrino mass hierarchy is constrained in our nucleosynthetic method with measured 7Li/11B value in SiC-X presolar grains. The inverted hierarchy is statistically more favored at the 2-σ C.L. [1].
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
